DKDP, KD*P Crystal

• Excellent internal quality

• High deuteration (> 99.0%)

• High EO Coefficient

• Good UV transmission

• High optical damage threshold

• High birefringence

• Negative thermal lensing

• Top finish quality with high processing precision
• Large block for various size and shapes
• Very competitive price
• Mass production, quick delivery

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Product Details

Potassium Dihydrogen Phosphate (KDP) and Potassium Dideuterium Phosphate (KD*P, DKDP) crystals are

among the most widley used nonlinear crystals. Both of these crystals are routinely used for the doubling, tripling

and quadrupling of Nd:YAG lasers at room temperatures. In addition, their excellent electro-optic coefficients makes them commonly operating as EO modulators, Q-switches and Pockels cells.

Advantages of DKDP / KD*P crystals:

Good UV transmission
High optical damage threshold
High birefringence
High nonlinear coefficients

Applications of DKDP / KD*P crystals:

SHG with high pulse energy, low repetition rate (<100Hz) Q-switched and mode-locked Nd:YAG
THG with high pulse energy Q-switched and mode-locked Nd:YAG via sum frequency generation
FHG with high pulse energy Q-switched and mode-locked Nd:YAG
EO modulation
Q-switching
SHG and THG using high power Nd:YAG (1342nm and 1319nm)
OPO and OPO applications
Can be pumped by a wide range of sources

WISOPTIC' KDP/KD*P WITH BEST COST PERFORMANCE IN THE WORLD

Deuteration Ratio	> 99.00%
Dimension Tolerance	± 0.1 mm
Angle Tolerance	≤ ± 0.25°
Flatness	< λ/8 @ 632.8 nm
Surface Quality	< 20/10 [S/D] (MIL-PRF-13830B)
Parallelism	< 20”
Perpendicularity	≤ 5'
Chamfer	≤ 0.2mm @ 45°
Transmitted Wavefront Distortion	< λ/8 @ 632.8 nm
Clear Aperture	> 90% of central area
Laser Damage Threshold	> 600 MW for 1064nm, TEM00, 10ns, 10Hz (AR-coated) > 400 MW for 532nm, TEM00, 10ns, 10Hz (AR-coated)
* Products with special requirement upon request.